I sure do. i have a huge clean up crew. over 100 hermit crabs. 1 cleaner shrimp 1 fire shrimp. bumble bee snails. ceriths snails and sand snails (cant think of the names of them right now). cucumber and yellow watchman goby and two angels...
I have several different species of snails(not nassarious though) and some limpets that were hitchikers. I also have hermits but they stay in the sump.